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6kV倒闸操作实训.ppt

  • 2026-04-29 17:31:43
6kV倒闸操作实训.ppt
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6kV倒闸操作原则

6kV工作电源和备用电源开关切换应采用快切装置进行,正常切换采用“并联”方式,事故情况采用“串联”方式。快切装置故障时采用同期装置进行,严禁非同期合环。

发电机解列前应切换厂用电至备用电源供电,解列后应尽快将6kV工作电源开关及进线TV停电。发电机并网带15%负荷后方可将6kV工作电源开关及进线TV送电,然后进行切换。

母线停电

倒换低压系统,转移或停运所有负荷。

断备用电源开关

检查工作电源开关停电

备用电源开关停电

母线TV停电

交直流辅助总电源停电

母线送电:

检查具备送电条件

交直流辅助总电源送电

母线TV送电

检查启备变已投运

备用电源开关送电,给上工作电源开关二次插头。

合备用电源开关。

6kV A段停电小结

接到命令,检查操作可行性,对照厂用一次系统图核对6kV A段所带的低压系统及负荷均可以倒换或停运。

填写、登记并打印操作票。

倒换低压系统,将380V工作A段、 380V公用A段、输煤A段、净水A段倒为6kV B段供电,转移 6kV A 段上可以转移的负荷。

停运 6kV A 段上不能转移的所有负荷。

断开 6kV A段备用电源6300开关。

将6kV A段备用电源6300开关及进线TV6103停电,检查6kV A 段工作电源 6100开关及进线TV已停电。

6kV 母线 TV 停电。

6kV A 段所有负荷开关停电。

将 6kV A 段交直流辅助电源停电。

6kV A段备用电源切工作电源小结

接到命令,检查操作可行性,核对6kV A段运行方式确为备用电源6300开关供电。机组负荷已达到15%且稳定。

填写、登记并打印操作票,履行签字手续。

检查 6kV A 段工作电源6100开关及进线 TV 6101 已送电,6kV A 段工作电源进线电压正常。

调整启备变有载调压档位使 6kV A 段工作电源进线电压和 6kV 母线电压一致。

检查厂用快切装置已送电,方式为“全自动”,出口投“开放”, 装置出口压板已正确投入,信号指示正常。

检查 6kV A 段快切装置无“闭锁”,无“等待复归”及其它异常报警信号。记录6kV A 段备用电源 6300 开关电流。

选择 6kV A 段切换方式为“并联”。

启动切换

待 6kV A 段工作电源 6100 开关自动合上,备用电源 6300 开关自动断开,检查 6kV A段工作电源 6100 开关电流和切换前备用电源 6300 开关电流基本一致。

将 6kV A 段切换方式恢复为“串联”,复位快切装置。

复位6100及6300开关报警信号

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  1. CONNECT:[ UseTime:0.000537s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000605s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000368s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000298s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000532s ]
  6. SELECT * FROM `set` [ RunTime:0.000208s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000503s ]
  8. SELECT * FROM `article` WHERE `id` = 502076 LIMIT 1 [ RunTime:0.000751s ]
  9. UPDATE `article` SET `lasttime` = 1777493144 WHERE `id` = 502076 [ RunTime:0.013146s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000326s ]
  11. SELECT * FROM `article` WHERE `id` < 502076 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000667s ]
  12. SELECT * FROM `article` WHERE `id` > 502076 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000472s ]
  13. SELECT * FROM `article` WHERE `id` < 502076 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001612s ]
  14. SELECT * FROM `article` WHERE `id` < 502076 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.010727s ]
  15. SELECT * FROM `article` WHERE `id` < 502076 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000728s ]
0.099635s